If this is your first visit, be sure to
check out the FAQ by clicking the
link above. You may have to register
before you can post: click the register link above to proceed. To start viewing messages,
select the forum that you want to visit from the selection below.

[RESOLVED] Back to it again. RX 580 x2 Video cards. Adapters?

I'm running these cards from a 990fxa ud3 r5. My power supply doesn't have the 8 pin support. I don't run any IDE's so the power supply has 4 available. Are there any adapters I can find or am I better off with a new power supply? This older build was bad enough. The power supply has the juice so that's not going to be a problem. It's 1000w and all rails are coverd well. I think they max at 150w on the heavy draws but I don't have all the specs. These are Asus cards if that helps. I'm done for the most part of jamming money into it but it's a question I had and I knew where to go. The exact cards are DUAL-RX580-O8G 8GB.

Any other things, please ask. All of you have been agreat help lately.

I think you're going to find you need a new power supply. And according to specs for that card, it needs a 500W power supply just for one card, if you're running two, that's a 1000W for two cards, then you need more for your other components. Not enough power and some components might not work. I've seen this in Dell computers when the power supply wasn't enough to power even the dvd drives.

However, I found this in the questions section about the card on Newegg, when someone asked a question about power supply needed for this card:

This series of card draws anywhere at max 200-225W.
Coupled with other parts in your system (depending on your build) you will need a minimum of 550W (you can get away with 500W if you undervolt but beware of potential crashes due to the GPU not being supplied with enough power).

So you should be okay with your 1000w psu. If you only run one card, but if you run two, the minimum will be over the what you have in your 1000w.

Advisement taken. See how it all works out tomorrow afternoon. I can garauntee? I'll post back with any problems. I'm going to run the single card on the 1000w psu and see. (Probably will kill the pci lanes on the board anyhow, 2 cards I'm sure would push it).

64 lanes, 2 pcie vid cards at 16? I'm not quite sure of what else is on there yet, even though I put it together. Teardown tomorrow and out of the case to test.